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Audio and Video Talk
General Discussion
Audio 101 - Can your speaker be too big for your amp???
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<blockquote data-quote="Ampdog" data-source="post: 60215" data-attributes="member: 144"><p>From my side, I would try to reply to each question separately:</p><p></p><p></p><p> </p><p>No, if by 'big' you mean physical size. Also, they cannot damage your amp, if that argument came up from dealers. As said above, the determining factor is the efficiency. Ideally, you will get the same sound intensity from loudspeakers of the same efficiency, be they 40cm or 10 cm units. Differencers in size are incorporated in efficiency. But efficiency can also vary with frequency, and particularly at low frequencies, with the influence of the room. The measurement is usually in an anechoic room, making comparison to the real world difficult.</p><p></p><p>Multiple drivers do have more resistance to air movement than one, but then each delivers lower power, off-setting the 'resistance'. Again, it is included in the efficiency. </p><p></p><p></p><p></p><p>By listening! This is very subjective, also determined by the listening room. This naturally within the specified limits set by amplifier and loudspeaker. Even that is not always measured under the same conditions, expecially for loudspeakers. Damage by overloading loudspeakers is usually permanent and more expensive to repair than for amplifiers; the latter often having electronic limiting means resulting in distortion but no damage to the amplifier.</p><p></p><p>As the 'Stereophile' article indicated, the impedance/phase values of a loudspeaker can vary significantly with frequency. (I have said before that I frown on load-difficult loudspeakers; I would not buy them.) Inasmuch as this affects amplifier choice, one might require a more powerful amplifier with high current peak delivery. (Meaningful steps would mean doubling the output power; small differences are not audible.)</p></blockquote><p></p>
[QUOTE="Ampdog, post: 60215, member: 144"] From my side, I would try to reply to each question separately: No, if by 'big' you mean physical size. Also, they cannot damage your amp, if that argument came up from dealers. As said above, the determining factor is the efficiency. Ideally, you will get the same sound intensity from loudspeakers of the same efficiency, be they 40cm or 10 cm units. Differencers in size are incorporated in efficiency. But efficiency can also vary with frequency, and particularly at low frequencies, with the influence of the room. The measurement is usually in an anechoic room, making comparison to the real world difficult. Multiple drivers do have more resistance to air movement than one, but then each delivers lower power, off-setting the 'resistance'. Again, it is included in the efficiency. By listening! This is very subjective, also determined by the listening room. This naturally within the specified limits set by amplifier and loudspeaker. Even that is not always measured under the same conditions, expecially for loudspeakers. Damage by overloading loudspeakers is usually permanent and more expensive to repair than for amplifiers; the latter often having electronic limiting means resulting in distortion but no damage to the amplifier. As the 'Stereophile' article indicated, the impedance/phase values of a loudspeaker can vary significantly with frequency. (I have said before that I frown on load-difficult loudspeakers; I would not buy them.) Inasmuch as this affects amplifier choice, one might require a more powerful amplifier with high current peak delivery. (Meaningful steps would mean doubling the output power; small differences are not audible.) [/QUOTE]
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Audio 101 - Can your speaker be too big for your amp???
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